Hello;
If an EJBQL query is performed;
SELECT f FROM FooBar f WHERE ...
I note (fairly obvious) that the to-many relationships of the fetch'ed FooBar-s
are not freshened.
Is there a way to achieve this with an EJBQLQuery as I note there is no;
query.addPrefetch(..)
Thanks for
Hi Michael,
thanks, I do it this way as well and it's ok (~ 10k), but I was
wondering if there was a batch-insert. Just a thought - let's say:
instead of:
SelectQuery sel2 = new SelectQuery(OrgIncome.class);
List incomes = ctx.performQuery(sel2);
for (OrgIncome oi : incom
Ok.
Found some code.
Basically, I'm serializing a "DAO" class whose state is pretty much
just a DataContext.
private void writeObject(java.io.ObjectOutputStream out)
throws IOException
{
out.writeObject(this.childDataContext);
}
private void readObject
I did find some tests written which explicitly serialized DataContext.
Apparently I was serializing DataContext at one point, and had some
issue where creating a data object, then deleting that data object
without committing, and it was causing an issue with serialized
DataContexts.
On Wed, May 5,
Hmm. Unfortunately, I can't remember if my issue with that project
was that the DataContext wasn't being serialized or that it was and I
didn't want it to. And this was 1.2, so the behavior may have changed
since then.
But in either case, it seems pretty trivial.
In the case of it being serial
Hi Marek,
I don't know how many objects you are talking about inserting, but
I've done mass inserts (tens to thousands of objects) just using
dataContext.commitChanges().
mrg
On Wed, May 5, 2010 at 4:55 PM, Marek Šabo wrote:
> I've been searching for a method to persist list of DataObjects aka
My experience with Tapestry (4 & 5) serializing a DataObject to the
HTML (which it does by default when you have a loop in a form) is that
the deserializing of the DataObject (on the subsequent
request/response) gives you a DataObject that is disassociated from
the DataContext (not good). Perhaps
Hi,
I've been searching for a method to persist list of DataObjects aka
batch insert or mass insert. Haven't found anything relevant so far. Is
there a support for this in cayenne or some optimized way to this?
(faster than iterating and single inserting)
Regards,
--
Marek Šabo
No direct experience, but I know you can serialize DataObjects and I'm
99% certain you can serialize DataContexts. I think I did this in
one project in the past to preserve state between requests rather than
saving state in the sessions.
On Wed, May 5, 2010 at 4:37 PM, Michael Gentry wrote:
> S
Someone on another project here asked me if Cayenne works with session
replication (with 1+ user DataContext objects in the HttpSession)
between application servers (such as JBoss). They have a project
where they are running N instances of JBoss and they replicate/sync
the session data across the
Hey everybody,
When I try to reverse engineer an existing table, I want to only
reverse eng. a few of the tables that are related to each other. The
problem is that they are named differently. When I put something like
this in...
"ETL_BATCH" OR "ETL_BATCH_CONFIG" OR "ETL_PARA
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